The general type of ram arrangement for rotating the bowl has been referred to hereinabove generally as the type shown in U.S. Pat. No. 3,009,660, issued Nov. 21, 1961 and also U.S. Pat. No. 3,325,108, issued June 13, 1967. Limestone Crushing Process . The ram rotating arrangement for the bowl could as well be of the type shown in U.S. Pat. No. 3,396,915, issued Aug. 13, 1968.
A single ram, one on each side of the bowl, approximately 180° apart has been referred to as the bowl rotating arrangement. But dual rams might be used so that the bowl could be rotated either up or down without separate adjustment of the rams to reverse their direction of thrust. Double or dual rams normally include four rams, in pairs of two each, on opposite sides of the bowl about 180° apart, such as shown in U.S. Pat. No. 3,570,774, issued Mar. 16, 1971 and U.S. Pat. No. 3,396,915, issued Aug. 13, 1968.Referring to the drawings, Malachite Crushing Beneficiation Process Flow . A generally indicates any suitable base or foundation upon which the crusher may be mounted. A1 indicates an outer main frame member laterally extending as at Az to provide an adequate supporting surface. The frame member A1 extends laterally at its upper edge to form the convex ring or seat A3 with its tapered sides A'1 A5. A0 are radial supporting members which support the main bearing sleeve A7 with its upper housing or gear box extension A8 and its lateral drive housing extension A9.
B is a drive shaft upon the outer end of which is mounted the drive pulley B1. The shaft B rotates in any suitable bearings B2 in the removable bearing supporting sleeve B3. .B1 is 'a beveled pinion in mesh with the gear B5 at the upper end of the eccentrically apertured sleeve B6. B1 is an anti-frictional lining of babbitt or the like positioned between the interior of the sleeve A'1 and the exterior of the member B0. A similar anti-frictional babbitt B8 is positioned within the eccentric aperture B9 of the sleeve B0.